Question about 2000 Chevy Astro - Cargo van, with factory roof rails - Base Rack System

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4.3 valve cover torque specs

I need to find the torque specs for tightening the valve cover bolts on a 2000 4.3 astro engine

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Richard Warren

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Just tighten the bolts down firm and equal don,t over tighten.

Posted on Nov 17, 2015

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I need the torque spec for the cylinder valve cover 2004 toyota sienna?


20. INSTALL CYLINDER HEAD COVER SUB-ASSY
(a) Apply seal packing to the cylinder head as shown in the
illustration.
Seal packing: Part No. 08826-00080 or equivalent
NOTICE:
 Remove any oil from the contact surface.
 Install the cylinder head cover within 3 minutes after
applying seal packing.
 Do not start the engine within 2 hours after installing.
(b) Install the cylinder head cover with the 9 bolts. Tighten the
bolt uniformly in several steps.
Torque: 8.0 Nm (80 kgf cm, 71 in.lbf)
(c) Install the engine wire harness with the 3 nuts.
Torque: 8.4 Nm (85 kgf cm, 74 in.lbf)
21. INSTALL CYLINDER HEAD COVER SUB-ASSY LH
(a) Apply seal packing to the cylinder head as shown in the
illustration.
Seal packing: Part No. 08826-00080 or equivalent
NOTICE:
 Remove any oil from the contact surface.
 Install the cylinder head cover within 3 minutes after
applying seal packing.
 Do not start the engine within 2 hours after installing.
(b) Install the cylinder head cover with the 9 bolts. Tighten the
bolt uniformly in several steps.
Torque: 8.0 Nm (80 kgf cm, 71 in.lbf)
(c) Using an E6 torx) socket wrench, install the engine wire
harness protector with the 2 bolts.
Torque: 8.4 Nm (85 kgf cm, 74 in.lbf)

This is year/make/model specific to the 2nd Gen Sienna. Taken from the 05 Toyota Sienna repair manual. Hope this answers your torque specs for the valve covers which uses 10 mm bolts. If in doubt, as Scotty Kilmer asserts, do a "German tight".

Nov 20, 2017 | 2004 Toyota Sienna

2 Answers

I need the torque spec for the valve cover on a 06mercury malin


There is a torque spec for the cylinder head; I don't know of one for the cover.

Jul 14, 2015 | Cars & Trucks

1 Answer

Steps to change a valve cover gaket on a 1992 ford ranger


its not very hard at all. once you get the heads off just make sure you follow the proper sequence to tighten the bolts. always remember to tighten from the center bolts out to the end bolts so the heads seat flat and even. and make sure you have the proper torque specs for those head bolts. 1) hand tighten. 2) torque to half of the OEM spec. 3) full torque spec. all of this takes a while to do so be patient.

I’m happy to help further over the phone at https://www.6ya.com/expert/christopher_64bc1c93be5190d5

Sep 27, 2013 | 1992 Ford Ranger

1 Answer

I need head bolt torque specs for a 2000 cadillac deville dts..


DeVille, Eldorado, Seville 1999-2005

Cylinder Head

Print


Removal & Installation

Left Side

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:

    Negative battery cable Exhaust manifold Alternator Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Power steering return hose retaining bolt from the cylinder head 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket.
  5. Clean the head mating surfaces.

To install:

0996b43f80231662.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Left cylinder head bolt torque sequence-4.6L engine

  1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
  2. Torque the M11 bolts in sequence as follows:
    1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees
    2. Step 2: Turn an additional 60 degrees
    3. Step 3: Turn an additional 60 degrees (total 190 degrees)

  3. Torque the M6 bolts to 106 inch lbs. (12 Nm)
  4. Install or connect the following:

    Power steering return hose retaining bolt to the cylinder head and tighten to 37 ft. lbs. (50 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
  5. Change the oil and filter.
  6. Fill the cooling system.

Right Side
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Properly relieve the fuel system pressure.
  4. Remove or disconnect the following:

    Negative battery cable Exhaust manifold Water crossover Intake manifold Valve cover Timing cover Secondary camshaft drive chain Electrical connector from the Engine Coolant Temperature (ECT) sensor Nut attaching the coil cassette ground wire to the cylinder head Bolt attaching the exhaust crossover pipe to the cylinder head Bolt attaching the right transaxle mount bracket to the cylinder head Bolt attaching the rear transaxle brace to the transaxle Nuts attaching the rear transaxle brace to the cylinder head Rear transaxle brace 3 M6 external drive bolts from the front portion of the cylinder head 10 M11 internal drive cylinder head bolts Cylinder head and gasket
  5. Clean the head mating surfaces.

To install:

0996b43f80231663.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Right cylinder head bolt torque sequence- 4.6L engine

  1. Install the cylinder head with a new gasket. Lubricate the bolts with engine oil prior to installation.
  2. Torque the M11 bolts in sequence as follows:
    1. Step 1: 30 ft. lbs. (40 Nm), plus an additional 70 degrees.
    2. Step 2: Turn an additional 60 degrees.
    3. Step 3: Turn an additional 60 degrees (total 190 degrees).

  3. Torque the M6 bolts to 106 inch lbs. (12 Nm).
  4. Install or connect the following:

    Rear transaxle brace over the studs located at the rear of the right cylinder head Nuts attaching the rear transaxle brace to the cylinder head, loosely Bolts attaching the rear transaxle braces to the transaxle and tighten to 37 ft. lbs. (50 Nm) Nuts attaching the rear transaxle brace to the cylinder head and tighten 37 ft. lbs. (50 Nm) Electrical connector to the ECT sensor Bolt attaching the exhaust crossover pipe to the cylinder head and tighten to 18 ft. lbs. (25 Nm) Nut attaching the coil cassette ground wire to the cylinder head and tighten to 13 ft. lbs. (17 Nm) Secondary camshaft drive chain Timing cover Valve cover Intake manifold Water crossover Exhaust manifold Negative battery cable
  5. Change the oil and filter.
  6. Fill the cooling system.

Apr 16, 2013 | 2000 Cadillac DeVille DTS

1 Answer

I need the torque specs for my valve covers on my 1990 bronco 2 v-6


No torque specs. Don't use sealer, that can cause the gasket to slip. Put cover in place, start all bolts, loosely snug all, hand tighten from bottom two, top two, bottom ends, top ends. Warm up motor and re-tighten (good hand snug) do not over tighten.

Oct 19, 2010 | 1990 Ford Bronco

1 Answer

I need the torque specs for the exhaust manifold on a 2000 Chev Venture van engine size 3400 and... valve lifters @ t.d.c.


The torque for the exhaust manifold bolts is 12 ft. lbs. The rocker arms are to be torqued to 14 ft. lbs. first then turned an additional 30 degrees. Sounds kind of odd but that's how they tighten the rocker bolts properly.

Jun 15, 2010 | Cars & Trucks

1 Answer

What is the cylinder head torque spec for a 2005 nissan sentra 1.8 liter engine


  1. For 1.8L engines, tighten the bolts in sequence, as follows:
    1. Step 1: Bolts 1-10 to 22 ft. lbs. (29 Nm).
    2. Step 2: Bolts 1-10 to 43 ft. lbs. (59 Nm).
    3. Step 3: Loosen bolts 1-10 completely.
    4. Step 4: Bolts 1-10 to 22 ft. lbs. (29 Nm).
    5. Step 5: Bolts 1-10 plus 50-55 degrees.
    6. Step 5: Bolts 11-14 to 74 inch lbs. (8 Nm).

      0900c152801afb79.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Cylinder head torque sequence-1.8L engine


      0900c152801afad8.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Tighten the valve cover bolts in sequence-1.6L and 1.8L engines

Nov 13, 2009 | 2005 Nissan Sentra

1 Answer

Need the torque specs for a 1994 350 cyl head the one with the 4 bolts through the center of the valve cover and is this the same spec for a vortec engine


  1. Tighten the cylinder head bolts a little at a time, in the sequence shown. Tighten the bolts in three stages:
    • First pass: 25 ft. lbs. (34 Nm)
    • Second pass: 45 ft. lbs. (61 Nm)
    • Final pass: 65 ft. lbs. (90 Nm)
http://www.autozone.com/addVehicleId,1938903/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c1528008eed5

scroll down to about half way down the page , there is step by step procedure for the 1994 5.7 L head installation and torque and tightening sequence . handy dandy site . cheers .

Jan 11, 2009 | 1988 Chevrolet K1500

1 Answer

Looking for the torque specs for 1998 chevy astro van?


1998 chevy astro 4.3 v6 torque specs include :
* foot pounds *
balance shaft (if equiped) gear bolt = step 1 = 15 ft.lbs. step2 = additional 35 degrees.
camshaft sprocket bolt = 18 ft. lbs.
connecting rod cap = step 1 = 20 ft. lbs. step 2 = additional 70 degrees.
crankshaft damper bolt = 74 ft. lbs.
crankshaft oil deflectorbolt/nut = 27 ft.lbs.
cylinder head bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees. (tighten in sequence)
2811243.jpg


exhaust manifold bolts = step 1 = 11 ft. lbs. step 2 = 22 ft. lbs.
flywheel bolt = 74 ft. lbs.
main bearing cap bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees.
oil filter adapter bolt = 15 ft. lbs.
oil pan bolt/nut = 18 ft. lbs.
oil pump bolt = 66 ft. lbs.
rocker arm with press in studs = 18 ft. lbs.
rocker arm with screw in studs = 19 ft. lbs.
valve lifter retainer bolt = 12 ft. lbs.
water pump bolt = 33 ft. lbs.
* inch pounds *
balance shaft retaining plate bolt = 106 in. lbs.
camshaft retainer plate bolt = 106 in. lbs.
front cover bolt = 106 in. lbs.
intake manifold upper = step 1 = 44 in. lbs. step 2 = 88 in. lbs.
intake manifold lower = step 1 = 27 in. lbs. step 2 = 106 in. lbs. step 3 = 133 in. lbs. ** (tighten bolts in sequence)

cbb8861.jpg

thanks for your vote !

Dec 28, 2008 | 1998 Chevrolet Astro

1 Answer

What is the valve cover torque sequence for a 2000 nissan altima


No spec for torque. Bolts have shoulders. Replace gasket. Tighten the 2 center nuts first and just tighten the rest until they stop. You can tighten one and jump across the valve cover and do the other, but not necessary.

Sep 27, 2008 | 2000 Nissan Altima

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